When 5+ men/lads (typically australian) are put together in some form of area, causing them to isntantly bond like brothers coming out of the womb. All becoming fellas with each other like no other should be.
*silence at a maccas bathroom*
*5th guy walks up to a line of strangers in a maccas, Fella Effect insues*
Keith: "Aw mate, how's the job going?"
Simon: "not bad, not bad, how's the wife?"
Charlie: "This line's taking a while isn't it?"
Chad: "Yeah, someone's probably chucking a phat shit in there"
*All laugh like brothers*
*5th guy walks up to a line of strangers in a maccas, Fella Effect insues*
Keith: "Aw mate, how's the job going?"
Simon: "not bad, not bad, how's the wife?"
Charlie: "This line's taking a while isn't it?"
Chad: "Yeah, someone's probably chucking a phat shit in there"
*All laugh like brothers*
by AlphaFella July 28, 2019

When someone you invite to a group or event, (usually a female) hijacks said group or event for their own purposes or desires.
"Wait, Faith doesn't want to go to Maude's Cafe? We decided on that weeks ago!"
"Yeah, so due to the Foster effect we're now going to the Westbrook Diner because that's what Faith wants."
"Yeah, so due to the Foster effect we're now going to the Westbrook Diner because that's what Faith wants."
by Hahayeah11 June 7, 2019

The Coopler Effect is and effect that occurs when a single person is such a faggot that it creates the Coopler Effect.
by Cooper Reid May 19, 2014

by Freckles McGee October 1, 2011

The effect where a YouTuber will play a video game and their mindless sheep followers will start playing the game. This is usually good, but in roblox, it can result in cringe ass nae nae games such as tycoons to explode in the big money.
Fuck Denis and Flamingo. Their bitchass followers caused tycoons to flood the game section, leaving no room for the good games and causing the creators of the actually good games to use bots to get their games slightly noticed. God damn this YouTuber Effect
by BlueCaekz June 2, 2020

Apparently, it’s when you wake up after a bender and have a drink. As soon as you take your first sip, you suddenly feel inebriated once again
by Leggers August 29, 2020

I went up to pay the our bill and discovered Joe already paid for us…. That Dick…he’s doing his joenewlie effect again…
by Southside jonnie April 24, 2022
